CVE-2026-40569
Mass assignment in FreeScout <=1.8.213 lets an admin modify mailbox settings.
Is CVE-2026-40569 being exploited?
Not confirmed. CVE-2026-40569 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.30% probability of exploitation in the next 30 days.
How severe is CVE-2026-40569?
CVE-2026-40569 is rated Critical with a CVSS score of 9.0. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-40569?
Yes. A fix has been recorded for CVE-2026-40569. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-40569 affect?
CVE-2026-40569 affects FreeScout <= 1.8.213. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-40569?
Upgrade to FreeScout 1.8.213 or later.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Auth admin can override mailbox fields, enabling attacker BCC, SMTP redirection, and email exfiltration.
Immediate action required
- affected< 1.8.213
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.